Only eight teams remain in this year’s playoffs and of those eight teams, six are being led by first-time head coaches. (Only the Patriots’ Bill Belichick and the Seahawks’ Pete Carroll had been head coaches elsewhere prior to being hired by New England and Seattle, respectively.)

All six of these coaches were NFL coordinators before being hired as head coaches by their respective teams. And of those six, five of them have defensive backgrounds. (Only the Packers’ Mike McCarthy came from an offensive background, as he was the OC in New Orleans and San Francisco before arriving in Green Bay.)

Even given this incredibly small sample size, the fans in Carolina have to be pleased that the Panthers decided to hire former San Diego defensive coordinator Ron Rivera as head coach. He’s best known for the role he played as defensive coordinator for the 2006 Chicago Bears team that went to the Super Bowl, but he’s done a tremendous job in San Diego over the past couple of years as well.

While he’ll keep the Panthers in a 4-3, Rivera has had success running both the 4-3 and the 3-4 fronts. He’s known for being a “players coach” and likes to be aggressive in his defensive schemes. Behind his leadership, the Chargers went from 16th in total defense in 2009 to first in 2010.

No offense to Jim Harbaugh or the 49ers, but it’s proven that teams that hire pro coordinators usually have the most success. Current playoff coaches McCarthy (Packers), Jim Harbaugh (Ravens), Mike Tomlin (Steelers), Mike Smith (Falcons), Rex Ryan (Jets) and Lovie Smith (Bears) were all NFL coordinators before becoming head coaches with their respective teams.

Granted, being a coordinator doesn’t always guarantee success, as there are plenty of examples of former OC’s and DC’s failing as head coaches. Plus, as former Cowboys’ head coaches Jimmy Johnson and Barry Switzer can attest, coaches with college backgrounds can still succeed as well.

But Rivera’s knowledge and experience in this league should serve him well in Carolina. Panther fans have a reason to be optimistic after such a dreadful season.